<meta charset="utf-8" />
<script src="../lib/jquery.js"></script>
<script src="02_toggle.js"></script>
<style>
html * {
	margin: 0;
	padding: 0;
}

body {
	margin-top: 150px;
	margin-left: 500px;
}

#wrapper {
	margin-top: 20px;
}

#box {
	width: 300px;
	height: 300px;
	background-color: red;
	border: 2px solid blue;
}

input {
	width: 100px;
	height: 50px;
}
</style>

<div id="control">
	<input type="button" value="toggle" />
</div>
<div id="wrapper">
	<div id="box"></div>
</div>